<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="app">
    
    </div>

    <script src="./vue.global.js"></script>
    <script>
      const { createApp } = Vue;
      const app = createApp({
        template: `
          <div>
            <h2>这是app</h2>  
          </div>
        `,
        data() {
          return {
            firstName: "",
            lastName: "",
          };
        }
      });
      app.mount("#app");
    </script>
  </body>
</html>
